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  <meta content="2018-10-23T06:18:10.521000000" name="created"/>
  <meta content="2023-12-12T09:31:23" name="changed" translator="gocpicnic"/>
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  <title>
   <!-- Bit Selector -->
   位选择器
  </title>
  <link href="../../style.css" rel="stylesheet" type="text/css"/>
 </head>
 <body>
  <div class="maindiv">
   <h1>
    <!-- <img class="iconlibs" src="../../../../icons/6464/bitselector.png" alt="#########" height="32" width="32"> <em>Bit Selector</em> -->
    <img alt="#########" class="iconlibs" height="32" src="../../../../icons/6464/bitselector.png" width="32"/>
    <em>
     位选择器
    </em>
   </h1>
   <table>
    <tbody>
     <tr>
      <td>
       <!-- <strong>Library:</strong> -->
       <strong>
        库:
       </strong>
      </td>
      <td>
       <!-- <a href="index.html">Plexers</a> -->
       <a href="index.html">
        复用器
       </a>
      </td>
     </tr>
     <tr>
      <td>
       <!-- <strong>Introduced:</strong> -->
       <strong>
        介绍:
       </strong>
      </td>
      <td>
       2.0.5
      </td>
     </tr>
     <tr>
      <td valign="top">
       <!-- <strong>Appearance:</strong> -->
       <strong>
        外观符号:
       </strong>
      </td>
      <td valign="top">
       <img alt="#########" class="appearancelibs" height="64" src="../../../../img-libs/selector.png" width="64"/>
      </td>
     </tr>
    </tbody>
   </table>
   <h2>
    <!-- Behavior -->
    行为
   </h2>
   <p>
    <!-- Given an input of several bits, this will divide it into several equal-sized groups (starting from the lowest-order bit) and output the group selected by the select input. -->
    给定多个位的输入，这会将其分为几个大小相等的组（从最低位开始）并输出由选择输入选择的组。
   </p>
   <p>
    <!-- For example, if we have an eight-bit input 01010101, and we are to have a three-bit output, then group 0 will be the lowest-order three bits 101, group 1 will be the next three bits, 010, and group 2 will be the next three bits 001. (Any bits beyond the top are filled in with 0.) The select input will be a two-bit number that selects which of these three groups to output; if the select input is 3, then 000 will be the output. -->
    例如，如果我们有一个八位输入 01010101，并且我们将有一个三位输出，那么组 0 将是最低位三位 101，组 1 将是接下来的三位 010，组 2 将是接下来的三位 001。（超出顶部的任何位都用 0 填充。）选择输入将是一个两位数，用于选择要输出这三组中的哪一组； 如果选择输入为 3，则输出为 000。
   </p>
   <h2>
    <!-- Pins (assuming component faces east) -->
    引脚（假设元件朝东）
   </h2>
   <dl>
    <dt>
     <!-- West edge (input, bit width matches Data Bits attribute) -->
     西边（输入，位宽与数据位属性匹配）
    </dt>
    <dd>
     <!-- Data value from which bits should be selected for the output. -->
     应从中选择哪些位用于输出的数据值。
    </dd>
    <dt>
     <!-- East edge (output, bit width matches Output Bits attribute) -->
     东边（输出，位宽与输出位属性匹配）
    </dt>
    <dd>
     <!-- A group of bits from the data value, as selected by the select input. -->
     数据值中的一组位，由选择输入选择。
    </dd>
    <dt>
     <!-- South edge (input, bit width is quotient of Data Bits and Output Bits, rounded up) -->
     南沿（输入，位宽是数据位和输出位的商，向上舍入）
    </dt>
    <dd>
     <!-- Select input: Determines which of the bit groups should be routed to the output. -->
     选择输入：确定应将哪些位组路由到输出。
    </dd>
   </dl>
   <h2>
    <!-- Attributes -->
    属性
   </h2>
   <p>
    <!-- When the component is selected or being added, the digits '0' through '9' alter its <q>Output Bits</q> attribute, Alt-0 through Alt-9 alter its <q>Data Bits</q> attribute, and the arrow keys alter its <q>Facing</q> attribute. -->
    当选择或添加元件时，数字“0”到“9”会更改其
    <q>
     输出位
    </q>
    属性，Alt-0到Alt-9会更改其
    <q>
     数据位
    </q>
    属性 ，方向键更改其
    <q>
     Facing
    </q>
    属性。
   </p>
   <dl>
    <dt>
     <!-- Facing -->
     方向
    </dt>
    <dd>
     <!-- The direction of the component (its output relative to its input). -->
     元件的方向（其输出相对于其输入）。
    </dd>
    <dt>
     <!-- Data Bits -->
     数据位
    </dt>
    <dd>
     <!-- The bit width of the component's data input. -->
     元件数据输入的位宽度。
    </dd>
    <dt>
     <!-- Output Bits -->
     输出位
    </dt>
    <dd>
     <!-- The bit width of the component's output. -->
     元件输出的位宽。
    </dd>
   </dl>
   <h2>
    <!-- Poke Tool Behavior -->
    Poke 工具行为
   </h2>
   <p>
    <!-- None. -->
    无
   </p>
   <h2>
    <!-- Text Tool Behavior -->
    文本工具行为
   </h2>
   <p>
    <!-- None. -->
    无
   </p>
   <p>
    <!-- <a href="../index.html">Back to <em>Library Reference</em></a> -->
    <b>
     返回
    </b>
    <a href="../index.html">
     电路元件库参考手册
    </a>
   </p>
  </div>
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